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Table 4 Reliability and validity analyses of self perception- and external perception dimensions

From: Communication skills of medical students during the OSCE: Gender-specific differences in a longitudinal trend study

  Multiple correlation Cronbachs Alpha Item-total correlation Inter-item-correlation [95%-CI] Factor analyses
Self-perception rating
 Empathy 0.705 0.848 0.834 0.690 [0.622; 0.767] 0.913
 Structure 0.572 0.878 0.752 0.861
 Verbal expression 0.646 0.865 0.786 0.884
 Non-verbal expression 0.558 0.886 0.728 0.845
External perception rating
 Empathy 0.592 0.860 0.763 0.674 [0.625; 0.719] 0.871
 Structure 0.518 0.876 0.719 0.839
 Verbal expression 0.604 0.854 0.776 0.879
 Non-verbal expression 0.629 0.849 0.788 0.888